Only if you want to claim morals etc.
Let's see: "Are you grateful for the support (and tactics) of the powers that made and kept and keep that country "nice" and "cheap" both?"
The powers that made and keep that country nice are mainly the powers of Nature. Sun, winds, rain and so on. The plants living here making it green. The birds creating nice sounds. As far as being grateful to them is morally relevant I'm grateful. Add the laws of economy which regulate the market prices. Here I doubt any moral obligation for gratefulness. Then, of course, the powers of the people living here, especially those living in my street, the owner of the flat I rent, the friends I have found here. If they would, instead, hate me, that place would not be nice to live.
But I think you have in mind the government? They allow me to live here - they could simply close the country for foreigners. They allow foreigners to visit because this helps them, by paying visa fees and generating income for the tourism industry. That's business, and business does not require much gratefulness. Moreover, I could given them hints to double the income from visa fees from me but making the country nonetheless more attractive for me because it would become effectively cheaper. Simply by simplifying bureaucracy so that I could get the visa extensions myself via web. This is something I count as stupidity, and I don't think one has to be grateful for stupidity which harms both sides. So, I have some gratefulness for them being not completely stupid to ban foreigners completely.
Quite accurate. While Trump was less warmongering than usual, not starting a new war, the deep state was strong enough to prevent almost everything toward a more peaceful US, like stopping US participation in those wars in Syria, Iraq, Afghanistan, Yemen. So, the number of wars was left unchanged.
There was also a number of regime change operations. That the consequences were less harmful than during Obama time is nothing which can be attributed positively to Trump, it was the result of weakening US power and the increasing ability of the attacked governments to resist. So, in Hong Kong they have shown to be ready to start civil war like violence, in Belarus they have tried almost identically the same as Obama in the Ukraine where it ended in civil war, and even with a more aggressive tactic (violent protests from the start, without a month of "peaceful" preparation, and return to peaceful protests only after the obvious failure of those violent attempts). What has been tried but failed in Iran, Lebanon, Venezuela and Iraq was simply an attempt to start civil war, same for Bolivia where the civil war was prevented by the government giving up - and then reverting the regime change by winning the elections a year later. The other successful regime change, in Armenia, will be reverted in the next elections too, given that the US guy Pashinyan has lost the Karabach war.
On the other hand, no - you have left the normal a lot. The old normal was Dems and Reps nicely cooperating except for propaganda shows in election years which were forgotten as a "that's because of elections" after this and didn't prevent any cooperation. This normal crumbled with time. Some attribute the starting point of this to the Dems starting to support civil rights movement, some to identity politics, some to the neocons, to the tea party, or to Reagan or W. Whatever, the impeachment from the start - Russiagate confrontation was something new, and the Reps will now answer with a similar permanent propaganda war based on the stolen elections. One can expect even legal persecutions against Trump, which would be a completely new level of confrontation. But I think this will start only if the Dems will be able to secure that the Reps will never again win elections, because they would obviously retaliate and send the Dem president to prison too. (That's why Hillary has not been imprisoned - Trump did not want to risk retaliation.) So, if they imprison Trump, this will be a sure sign that the Dems think the Reps will never be able to win elections again, with sufficient certainty on the side of the president that he is even ready to risk own imprisonment.
So, think twice about wishing to see Trump behind bars. That would be the transformation of the US into a one party "democracy".