Ive been using proton for a little more than a year now and I think that the service is one of the best out there. That, and their privacy guides in their blog are great as well. I think abandoning ship this early isn't really a need. I've abondonded things like Plex for jellyfin due to Plex starting to feel very commerical. As others have pointed out, the governing of the company may keep one individuals views from interfering with the products. With that said, if your beliefs swing opposite, i see how it can leave a bad taste and make it worth keeping an eye on the direction of the company.

So long, and thanks for all the fish

As a Brit, I'm not offended by the Proton CEO's post. I don't like Donald Trump BUT I do like that he has hired someone who should be tough on tech anti-trust moves. This is very important.

Americans can be obsessed with their electoral system, but the rest of us don't have to pretend to support the Democrats or Republicans. I don't necessarily agree with all of Andy Yen's take regarding the two parties, but I'm not offended enough by it to boycott Proton, certainly not based on one tweet. I can also see the pragmatic benefit to his position by massaging trumps well known fragile ego.

using services based on the ceo's political leaning instead of actual features and policies of that service? that's dumb, tell me when that political leaning reflects in polices of proton then we can talk

I dont know of any alternatives but I will use Zoho Mail for now with my own domain. As they are cheap and reliable. I been using them for my business and it is great.