tom’s creative process is one of the more overlooked parts of his performances, whereas Jerry overcomes his lack of formal training through sheer physicality
Squidward was in his 40s in 1999 meaning he had his prime years during the AIDS crisis. It’s likely he spent a large portion of his life closeted or self-loathing. It makes sense he would resent SpongeBob’s carefree lifestyle. SpongeBob is everything Squidward couldn't be
a man with a savings account, deep down, doubts his ability to handle situations as they arise & needs to depend on another man (past self) to take care of him