When you see an ad or a post that you don’t like in your Facebook feed
you can
tell Facebook you don’t want to see it anymore. This works on
ads, on updates
from friends and pretty much anything that appears in
the news feed.
Tell Facebook if you want to see less from that person, from that
webpage,
from that advertiser or if you want to report that post.
After you start doing this you’ll notice that your Facebook feed will improve,
though it isn’t perfect.