You just explained to me the problem with what could happen, then you explained why we so badly need to push back. This is the problem with fascism, give them an inch and they'll take a mile. Kowtowing to them only teaches them they can do it more. Enough will never be enough. They want to impost their Christo-fascism upon everyone, or simply murder everyone. They want you either having zero orgasms, or dead so you can't have any. They are spreading violence and hatred, and "LGBTQIA+" individuals and groups are only the first. They will forever shrink their in-group whenever it suites them to gain more and more power. Because at the heart of fascism is hatred and unlimited greed for power and wealth, and using violence to obtain it.
So what's the solution? Laws. Governments creating laws which protect everyone from harm, and maximize everyone's freedom. What's the immediate solution until we can have democratic and loving governments after we overthrow the fascist hateful ones? Put all the pressure we can on all institutions to stop them from giving into fascism, however possible. If that means not being able to use VISA cards, and moving to some other payment system? So be it. It's do or die. It's stand up to Nazis, or let them win, and the latter is NOT an option! Anyone with morals must understand this, because otherwise we let them goose step all over our freedoms and our lives.