Admittedly not a huge comic guy but I’ve long maintained that comic Thanos’ motivation is so much better than movie Thanos that it distracts from the MCU plot. Movie Thanos is worried about resources across the universe so he kills half the population. Even if he isn’t immortal, as a titan he will live long enough to see this problem resurface. Then what? Is he supposed to just keep ritualistically culling the universe? It’s not a good or sustainable solution from someone who has the time and mind stones to basically have infinity to come up with a plan

Comic Thanos being in love with death makes so much more sense. Killing everyone would irritate death because it would end her existence, love makes him blind to his weaknesses, and despite loving death he knows he can’t ever embrace her and live. It gives him good motivation, clear weaknesses, and is a compelling story