The thing is:
No one is telling you to wear them. The same way no one is forcing you to smoke, drink, get tattoos, piercings, watch football, go skydiving, switch religions, be a doctor, or any clever little thing here. Even if we were, it's still your choice to do so. Now is your choice right, or wrong? Neither. What about other people's choices? Neither.
Personally, I like women who like what I like. If you don't like heels, you'll find (or have) a guy who doesn't like them either. It's all good. That goes for everything actually if you really think about it.
Now, if you want to be a vigilante and stop all women from wearing heels, good luck!
The world will still go on: