I saw CM and was underwhelmed by it-it didn't suck, it just didn't "entertain" like the other MCU movies did-I'd rate it around the first two Thor movies. The Hulk is the worst of the bunch. With that said, did see potential with it-maybe different director/script would work better.
As for the political comments-at this point it doesn't even phase me and I ignore it. It gets harped upon by news/entertainment business just to drive click on a website to get advertising because its so "decisive", when its just a Pavlov's dog response to something someone doesn't like-fill in the blank-Trump,SJW, etc
As for MCU fatigue-Outside of the Spiderman movie coming out this summer (which is Sony, not Disney/Marvel), I don't think we are getting another MCU movie for 18 months or so-which is a good break after End Game. I'm not even sure what movie it is going to be-I think Black Panther/CM2 or GoTG:3 are all on the table.
It will be Ant-Man 3 (light movie to wash the palate after the big Avenger's finale) and a proper CM movie set in today's timeline rather than the 90's establishing her as the new Iron Man (team leader). GoTG:3 has had to many production setbacks to be out that soon.
They'll highlight how the old Avengers failed to stop Thanos and that's why this new, inter-sectional, female led team will be better than the old men leading the Avengers. They did it in the Comic, and I swear it was only to test market reception to the incoming gender/race swaps.