What are some evidence of the argument "Laura is the surrogate for Tennesse Williams and not his sister Rose"?

Critics who favor the sexual interpretation of Tom's nightly disappearances often cite Tennessee Williams' youth and his grappling with his own sexuality. The play is in many other respects autobiographical, and Tom is Williams' surrogate - he even bears Tennessee Williams' real name. If Tom were gay, his frustration with home would be even greater. Tom would feel even more isolated and restless, unable to tell the truth to his mother and sister. Check out the GradeSaver link below: