Many ant species look so much alike that even experts have trouble telling them apart - the best example for this is the Tetramorium caespitum-impurum species complex, an absolute nightmare of cryptic speciation consisting of over 30 species many of which are only identifiable by their males' genitalia and some even only by genetic analysis. Since ants rely on pheromones to find mating partners it doesn't matter if they look absolutely the same - as long as they just "smell" different the ants will know the difference.
And seriously, AC being clickbait is neither new nor entirely his own fault. If you want to be successful on Youtube you're basically forced to do whatever the algorithm decides to shove into people's newsfeeds at a given time (like putting those absolutely stupid red arrows in thumbnails or encouraging users to post thousands of comments for giveaways - the "question of the week" is just an easy way to massively inflate the number of comments on his videos and the algorithm is too dumb to tell the difference between that and actual user engagement so it thinks like "hey, people comment a lot on this video it must be really popular or controversial, let's shove it into more people's faces"). There's an interesting court case though slowly making its way through the US legal system that could result in "content filter" algorithms like those creating newsfeeds for Youtube, Twitter and Instagram becoming illegal. Maybe one day we'll see less clickbait as a result of that.