I think they are almost equal in result-—but, yes, killing is worse than sexual immorality.
Abortion and Homosexual behavior are both Mortal Sins and the insidious rot of homosexual behavior undermines morality in Civil Socieites as much as abortion does. They are both equal in the amount of Rot and vulgarness they cause.
Both Acts are Mortal Sins.
Both abortion and sodomy are pro-death. Human lives that could be saved by Christ and could worship Him never come into existence(although I do believe aborted children enter Heaven though I can’t say I have a definite Biblical proof-text for it).
In reading God’s responses to child sacrifice, He has said it never came to mind. As if He couldn’t imagine this ever occurring. Shocked disbelief of the abhorrence and He states that He hates the shedding of innocent blood over and over. I truly believe this is the abomination that causes desolation.