Listen joeym, I agree with you on the points you are conveying. Tight fitting clothing should not be worn and legs should be covered, but maybe you need some help with this issue.
Unfortunately, there are some circles that are frum and not chareidi where woman will not cover their legs. You’ll have to live with this. I’m definitely not condoning this level of (un)tznius, however this is reality. Therefore, it might do you good to discuss with a Rabbi or someone you trust,ways to stop noticing and thinking about women that much. Im not trying to be nasty. I’m just saying that this is reality.