1. I wouldn’t eat it, but for health reasons, not ethics reasons.
2. I would have nothing against other people eating it. If they want to degrade their health without harming any other being, that’s fine with me.
3. Plant-based analogues are becoming flawless. Even if the lab meat makes it to the market, it will be pushed out by the plant-based analogues (though it may remain on the market long enough to be profitable for someone).