Is my plant ruined (Plant 2)?

that plant should fade it is nowhere near ready yet it just needed more nutrients than the other one.

End of life it's normal. Leave them on until they dry up as the plant uses up the nutrients in those leaves.

Senescence (the condition or process of deterioration with age) is normal with plants mid-late flower. I've grown ILGM's white widow auto twice also and what I've noticed is two primary phenos, a short bushy one and a taller one - you have one of each. My observations with them were that the taller pheno always faded out first - not sure on the mechanism behind it but your shorter plant is starting to lighten a bit and will probably start fading soon too.

is there a benefit to removing or does it reduce risk of some sort of problem? if not, might as well fight through it... unless you can swap out a properly sized light for the leftover plant(s), you aren't saving any money etc... however, if the work to maintain it does not seem worth it, that's a good reason to trash it too. personal preference plays a role here. Looks like it needs more nitrogen, to me. BUT, depends on how you have fed it.. pH, variable soil contents etc... rule out as much as you can before fiddling with nute mix. if it's being locked out, that's a whole different solution needed.

the difference is scary isnt it. thats because each seed is a different genotype even if they carry the same name. meaning some will want more nutrients and some less. #2 is a heavy feeder and it needs nitrogen, #1 is having wet feet and gonna have root issues if you dont give it a good wet/dry cycle. plants need high nitrogen during stretch and a constant supply of it until harvest so its impossible to grow healthy plants with just bloom boosters. get some grow nutes into the mix for that #2. yellow leaves are most likely will not recover but it can still provide for you if you provde for her haha

Actually looking closely at her. She looks fine to me. What you are seeing is more of a fade. But in reality a bigger plant does need more feeding but she looks uniformed color wise.. but needs more time cooking. Happy growing

NO DO NOT CHOP. She's weeks from been done. Up the feed, she looks hungry that's all. She's a lot bigger so if you are giving both plants the same amount of feed then you know your issue. Bigger plant needs more food more so than the little guy. Don't harvest your biggest/best Looking plant yet. She's way off from done. 2-3 weeks at least.. Good luck.