I agree with David. It’s the same thing I say often. I’m from The Netherlands. Though I’m not from Amsterdam, I know Amsterdam quite well. And if I walk through Amsterdam, I know exactly which streets to avoid, in order to avoid nasty sights. There is no halacha that forbids one from walking down a street (though I’m sure some people will think of something), yet I don’t go there. Why? Simply because I stay away from such sights. Simply by being an adult human being with a normal mind and some self-control.
Also as mentioned before a filter cannot work for me for technical reasons, but there is a principal issue as well.