I'm asking out of curiosity, are you guys experiencing a surge of gambling ads on youtube videos lately? this past week I've experienced an increased encounter of gambling ads on videos I watch on youtube. it's not that it bothers me, I am just surprised because I don't remember getting this many gambling ads on youtube videos in the past, but this past week, I usually get a gambling ad from 2-3 out of 5 videos I watch(it's just an estimation because of how often I get the ads). I don't know if it is because I recently watched several videos of streamers gambling or it's just a coincidence, I've watched streamers gambling videos in the past but I have never gotten this many gambling ads.
The last part of your sentence, that's because of that. Advertisements on Youtube have some kind of a system for your most-watched clips. In my case, I mostly see advertisements that have something to do with food and online shopping because that is what I mostly watch. Then, some about sports drinks and foods again.
I think it's a combination of watching sports a lot of times and then food vloggers.
In your case, you must be watching a lot of gambling streamers so get used to watching more ads that have something to do with betting. Casino platforms, online gambling sites, and maybe even resorts with casinos in them.
If you want to decrease this, maybe you could check your watched history or don't subscribe or follow those who have something to do with betting. I have not tried that yet though. Maybe it will work.