But Christians ignore this.

Only Jewish people follow this

This.

A lot of this is just so confusing

He's quoting the same Leviticus passage that haters use to oppose the gays. "Man shall not lay with man, it is an abomination" comes from the same place.

If Christians still think that's valid, surely the rest must still be as well?

You have a severe lack of understand of the old Covenant vs the new. the Old covenant was fulfilled when Jesus died on the cross. All it would take is a little research but nope you went and cherry picked.

Leviticus was rules that were made to
Either Keep the people healthy or to differentiate themselves from the pagan cults around them as not to mix cultures.
Also, being a sinner doesn't get you an automatic ticket to hell. We're all sinners

But the gay people!!!!!!!!!!!

You do realize the NT condemes it too, right?

The New Testament says that homosexuality is a “shameful lust” (Romans 1:26), a “shameful act,” an abandonment of “natural relations” (Romans 1:27), a “wrongdoing” (1 Corinthians 6:9), and “sexual immorality and perversion” (Jude 1:7). Homosexuality carries a “due penalty” (Romans 1:27), “is contrary to the sound doctrine” (1 Timothy 1:10), and is listed among the sins that bar people from the kingdom of God (1 Corinthians 6:9). Despite the attempts of some to downplay these verses, the Bible could not be clearer that homosexuality is a sin

The satanic bible>>>

Also most of these aren't even sins they're cultural laws

So I guess that means that calling homosexuality an abomination was just trying to get people to have babies?

Yes actually, this was a people constantly at war defending themselves from all sides. Any waste of semen would be seen as an "abomination"