A house in Tahoe you use 3 weeks a year is not really rental stock, and it's not clear what benefit the public gets from your 2nd home that would justify a tax subsidy
Re-reading the comment I was originally replying to, the commenter might have meant that the 2nd home didn't justify a tax deduction, which I would most definitely agree with. A 2nd home is an investment, and there should be no tax incentives on that sort of investment.