Y'all are worse than antis. A fan song project is not going to impact Taehyung at all. Especially because it's coming out weeks after the album is out. So even if people were streaming it like they would a BTS comeback (they won't be), it still wouldn't be direct competition for either Tae or a hypothetical JK comeback. And if anyone thinks so, they're either delusional or severely underestimating Tae.
Furthermore, Tae said on his live yesterday that he wants to see more army vlogs and content for him to enjoy. So why the hell would he care if (and that's - again - a big if) people spammed it in his comment section? Since it seems like something he - and the members - would enjoy?
Stan twitter has rotted y'alls brains. I suggest a long walk outside and touching grass for the people actually upset over this.