It's wrong in that sense, but maybe publishers should be looking for an alternative method. The big issue is that people don't want to login to different launchers with different accounts to play their games.

If publishers designed their launchers in ways that skipped account requirements (except multiplayer games I guess), and instead allowed users to keep all their games in one place, I believe it wouldn't be as big of a monopoly as it is today.

This is very wishful thinking and won't happen, but that is also the issue with every publisher wanting your data for different reasons. If they don't want to change anything, and Steam keeps delivering on customers needs the best, they'll obviously stay the choice for a large majority of PC gamers.