After my own observation I can say there is a wage gap: not because women are payed less because they are women but because they work jobs they like even if they dont pay much (women do mostly "social" work: history, litterature, languages etc) while often men dont consider if they like the job or not, they just look at the salary

Is there a wage gap? Let’s debate.

Assuming the debate creator is referring to the famous/infamous 'gender wage gap'--then, yes, there is a 'gender wage gap'; although it has very little to do with 'systemic gender-based oppression'. Moreover, even where gender is the relevant variable, it goes in both directions of prejudice toward men/women (depending on the position/field) rather than uni-directionally against women, as is often asserted

There is always a wage gap. And it doesn't even have to be a men vs women issue. The people who make less will almost always have a beef with individuals and groups who make more, and usually hey have a good argument about it.

Which means this dynamic never completely goes away. You don't fix a wage gap once and forget about it, it's and on-going tug and war forever. But that also means you don't just dismiss this issue as irrelevant. It is almost always relevant.