Affirming Christians don’t ignore it, but they also don’t need to treat it as a commandment as you seem to. If you read the start of the chapter, it’s talking about practices done by neighbouring communities as they worship their own gods. The instruction here is essentially to the Israelites to make themselves separate from that. It’s relevant to the time and their geography and it is not a code of sexual ethics. Furthermore, even though it’s easy to call it very clear, the verse you cite is not even talking about regular gay sex, and certainly not gay sex in a loving relationship. It’s referring to likely abusive gay sex with teenage boys.
Believing what I’ve just said is not an act of hypocracy, at worst it’s a well meaning misinterpretation. If someone were to pick and choose as you say, and be fine with tattoos (also covered in this section) but use this verse to be against homosexuality then that is hypocracy.
I mostly agree, with the exception of thinking that Christianity is hateful (though some of course try their best to show otherwise), but if you’re saying it’s hypocritical to interpret the bible as not being against homosexuality I think you’re drastically oversimplifying. That part was the only thing I was looking to discuss.
I’m not going to engage too heavily in an online religious discussion, but as with most things it really is more complicated than that. Many, many Christians acknowledge these parts of the Bible while still being LGBTQ affirming. In brief terms there’s a very good case these passages largely are speaking of some kind of sexual abuse, or the use of sexual activity as an act of worship.
If you can filter your mind of centuries of homophobic biblical rhetoric and biased translations, it’s surprising how little there is to read on the subject.