I don't like go as a personal preference but reducing them to "fanboys" is a bit reductive. I'm sure the same could be said about your own favorite language.
Other languages have fanbois but they didn't disparage and denigrate other communities to prove themselves.
And you're right, fanboys are in every language. But resorting to changing the argument by whataboutism is a bit reductive.
There’s an oft-repeated pattern where valid specific criticisms morph into broad criticism, which morphs into judgement, which breeds defensiveness, which feeds the criticism. Once you recognise this pattern, you see it everywhere.