And again, whether all other countries do not meet your preference or requirement does not free you from your obligations to this one, as long as you live here.
Whether other countries don't allow you in, don't allow you to stay, don't govern the way you like, or whatever other complaint you may have about other countries, that does not change your present-day relationship to this one: that you live here, and as such are obligated to pay taxes as long as you do.
And of course there are, right now, many other countries that you could emigrate to if you liked. Even if your A-list countries aren't open, you still have lots of options.