Ever since I read Crowley's Autobiography (all 900 pages), the guy has really started to creep me out.
http://www.hermetic.com/crowley/confess/index.html
He frequently committed animal sacrifices in his boarding house. He tortured a cat just to see if it had "nine lives".
Quote from chapter 6:
>> I therefore caught a cat, and having administered a large dose of arsenic I chloroformed it, hanged it above the gas jet, stabbed it, cut its throat, smashed its skull and, when it had been pretty thoroughly burnt, drowned it and threw it out of the window that the fall might remove the ninth life.<<
Some of his woman hating comments are such that I could not repeat them here.
He talks (a lot) about the dangers of "mixed blood".
Quote from chapter 34:
>> It was atrocious folly to allow Indians to come to England to study, to mix freely with our women, often to marry or seduce them.<<
His attitude toward the handicapped? Quote from Liber AL:
>>We have nothing with the outcast and the unfit: let them die in their misery. For they feel not. Compassion is the vice of kings: stamp down the wretched & the weak<<
In his own words he tells how he cheated the poor people who worked for him in China. On a mountain climbing trip, he heard people shouting who were trapped in an avalanche but he did not help them because he was already in his tent with his boots off. They died.
He repeated the charge against the Jews that has gotten so many killed, by saying (in 2 different books) that Jews were committing human sacrifice. In his diary (See July 29, 1943) He stated that "Mein Kampf" was a masterpiece and claimed that Hitler had taken his ideas.
I think most Tarot people are very sensitive to influences, and Crowley's influences are about as negative as you can get. There are thousands of decks out there, and most of them were surely invented by better people than Uncle Al.
Influences do mean something. They mean everything. I think you should listen to your intuition, and find a new deck that you can feel totally good about that will be a positive force in the world.
Good luck!
***Standard Disclaimer: This is just a suggestion. I am not claiming that my way is the only way, or that any way is the only way. I am not trying to impose a system upon people who reject all systems.***