It's really not that hard to get along here if you agree that non-free
software is unethical.
The finer details get a bit more challenging. Every one is putting up with
some non-free software. If they weren't they would not be able to communicate
on this forum. However that doesn't mean everyone is going to put up with
non-critical things like Adobe Flash, non-free games, etc.
These are generally not critical to life. However if you lived by that purely
you wouldn't be on these forums either. Last I checked you can still survive
in this world without a computer.