They shouldn't, but they may have to act on their preference and find a company who is going to be primarily or entirely remote.

I think the most people overestimate how hard it is to be a remote member of a team that is in the office (especially for software engineers). I've been remote for years and up until the pandemic the rest of the team was working together in an office. I honestly never felt like it put me at a disadvantage and in many cases I think that I was the one at a considerable advantage.

In general I think the future is not "fully remote" or "fully colocated" teams but teams were everyone is to some degree remote based on their preferences. So you may have some people who come into the office every day because they don't have a good workspace at home (or just like to get out of the house every day) but everyone else will come into the office somewhere between a few days a week and never.

This. No one is forcing anyone to work in office. The job market is...market and it provides you with certain benefits for certain services and expectations in return, and for many companies one of those expectations is coming into the office. If the market moves towards more remote work, then remote work will gain more leverage in negotiations.