Amazingly, so far, it hasn't hurt his approval numbers.
For one, if they dip as low as they might given the expected economic hardship and the other cultural issues, you might start seeing rioting.
For another, I don't think it's a given this is Trump's final term. There already is a congressman trying to get in legislation to change the constitution to allow a third term. Even if that fails, the SCOTUS has already taken some egregious decisions in relation to Trump (full presidential immunity even for political assassinations) - what they might think they can get away with in the next four years is anyone's guess.
He started with (I think) the lowest approval numbers in modern records so to an extent it was probably priced in from the outset.
https://www.realclearpolling.com/polls/approval/donald-trump...