Earlier quoted context omitted.
It's real simple: "Don't take away my choice to wear what I want." For whatever reason, fragile people get real offended by what other people wear.
The problem is these has been equated to symbols of oppression. Tbf, they serve no practical purpose and are deeply tied to religious practices that have caused lots of problems where they are from. A similar thing would be the ban of wearing nazi symbols.
It's a head covering; it covers your head, which can provide comfort depending on the environmental conditions.
Depending on the specific garment and context, it may provide some privacy/anonyminity.
Comparing it to nazi symbols doesn't seem right; in part because it's not purely symbolic, but also because it's only oppression when you're forced to wear it, not when you choose to. No one is calling for the star of david to be banned because Jews were forced to wear them; if someone wants to wear it, they can.