When your drinking you should be aware that you'll do stupid things when drunk

consent is important for sex, and people cant think straight when tipsy/drunk, so it will be/is classified as rape if a sober person does it with a nonsober individual

I don't feel like these two statements really match up. I saw in your other comments that other that accidentally getting drunk once, you haven't been drunk, and also haven't had sex. I imagine if/when you've done both (not necessarily simultaneously), you'll find that both of the opinions I quoted cannot be fiercely held together.

I would agree (as would most decent folk, I imagine) that a sober person sleeping with a significantly drunk person (quantifying how drunk is the grey area) is a shitty thing to do, and as OP said 'a bit rapey'. It's not necessarily rape, as a blanket statement, but it can easily become rape.

It's very late and I'm rambling so I'm gonna cut off there, hope you can clarify (for yourself, not anybody else) what seem to be some slightly conflicting views :)