this manhwa is indeed irresponsible on the part that MC was clearly not able to consent while he is drunk yet the ML took advantage of that. However, I think the rest of the "not being able to control his own heat", etc. is actually the MC's perception of his own self. His self esteem is actually low from his monologues. It is his self deprecation which is why he also isolates himself from the rest of the world. He is afraid to be hurt because he feels so unlovable, that he is an unworthy omega and even feels very bad for having face blindness.
But the rest, I agree.
MC is also pretty valid for being so sus of ML because clearly all of this feels like love bombing.
100% understandable for the MC to be suspicious and guarded. ML clearly continues to push him even if though he stablised he doesn't want anything beyond kissing. Lots of people in the comments are annoyed at MC's reservantions about ML and they want the story to progress into love right away, but in the end of the day No is still No, MC is not comfortable with all of this affection, and it's kinda weird how people are disregarding his opnions and siding with someone who is basically his rapist.
Regarding MC's thoughs, unfortunately this is a mentality imposed into rape victims to make them feel like they were actually the ones perpetuating the crime, I guess I was irked about the fact that the manhwah just leaves it at that and never questions this horrible though, I hope the author addresses MC insecurities and actually makes him realise that it wasn't his fault in the first place, and he shouldn't be so hard on himself. It just feels irresponsible to leave a message like that unaddressed even if it comes from MC's own insecurities.

This manhwah feels irresponsible, letting the MC blame himself for "not being able to control his own heat" and getting pregnant nonconsensually is basically blaming a victim for getting raped under the influence of alcohol, which is exactly what happened btw, he was clearly in a state where he wasn't able to consent to both sex and impregnation. Spreading a message like this feels very dangerous, I understand that this is supposed to be just erotic fiction, but I truly belive we need to exercise some critical thinking and scrutinise the yaois we read, even if they are kinda trashy eroticas in the end of the day. If we sit back and analyse the story MC's situation is a nightmare. Imagined waking up one day and discovering you are pregnant from a one night stand from a month ago, absolutely harrowing.
I also belive that even though the ML is clearly a lovely person to MC he still bypassed MC's consent in doing what he did, and so he still is a rapist. Mc also stated to be uncomfortable with his behaviour later on, and he still insisted on his advances.
I guess all I'm saying is this feels kinda iffy to get through.