not understanding the byler ship?

I personally like eleven and mike together just because they've built their relstionship up over the last few seasons and I always felt it was meant to become endgame. however I've noticed a lot of people who ship mike/will on Twitter and I don't understand? I've been called homophobic for not shipping them and not seeing the chemistry and as someone whose bi myself I don't get where they're coming from when I genuinely don't notice any chemistry. If anything mike just seems exasperated with will like 70 percent of the time. I 100 percent believe will has feelings for mike but I don't see it being reciprocated, yet byler stans have all these theories about why they're endgame and how mileven season 1-3 was just there to build up to byler which makes no sense to me. I've also seen a lot of people say (on twitter) that they have to make byler endgame now or it would cause a shit storm because of queer baiting since the actors have been posting about byler but I honestly don't even know if that's queerbaiting rather than just the actors interacting with their fans and marketing towards that specific set. I also think it's unfair to think they HAVE to be end game now because of the subtle hints they've been dropping about it. Basically I've seen no chemistry and no signs that they'll end up together so I kinda just wanna know where this came from since it seems very out of left field. the most proof I've seen is about the actors talking about it and someone who made a post about how mike and will stare at each other in the season 4 picture. is there something I'm missing or not picking up on?