You are of course right, a cheat is a cheat, no matter if he dabbles with T-patches or takes the $100.000 experimental drug. LA is singled out not because his doping was worse than other's (in fact, I wouldn't even know, and I don't know if anyone else has a definite answer to that). He's of course singled out because he was by far the most successful athlete during this time. Of course people go after the #1 (seven times!) not some schmuck at #58. It's human nature. I don't think many people see it as personal even (I don't), but when you're the #1 seven times, you make yourself the target no matter what. If LA had only won twice, JU two more, Basso and Kloeden maybe one, and some other schmuck the last one of the seven, we wouldn't talk about LA so much. It just seems that he profited most from whatever he did, so he'll be the guy we discuss. Get over it. We don't single him out, he did it himself when he won the 7 TdFs in a row.
ETA: and let me also say a few things about Disco, the sponsor. I don't understand the hate. Discovery Channel's signature shows right now are AFAIK 'Mythbuster', 'Dirty Jobs', and 'Surviverman'. The first is a show about two dudes and a few sidekicks who blow up stuff. The second is about a guy shoveling manure. The third is about another guy eating grubs and seal blubber. Those are fine shows if you want to connect with your inner dork, but there's nothing inherently 'evil' about it (the shows aren't sponsored by Nike, Dr.House?) So why the hate? I think it's a pity that a lot of sponsor money left the sport. There's nothing else to say.