As a healer, is it my job to DPS? A new perspective.

[Kitfox]

Also, please don't accuse anyone you haven't played with about "enforcing" anything to anyone "in a dictatorial way", that's just ridiculous.

Exactly this. Theoretical discussion about optimal play doesn't dictate how people play in practice, and how people play in practice doesn't dictate how they treat other people.

...Im betting others feel the same as well...

I suggest you let others fend for themselves, otherwise you're just making baseless assumptions about people that might or might not exist, just as you're making assumptions about people pressuring others into things just because they know how to play optimally.