If Kagan is not recused then there should never be a Supreme Court recusal again because the concept is meaningless.
Kagan was hired for one reason - Obamacare. It certainly wasn’t for her looks.
If gay marriage ever comes before the SC, then Kagan may have some additional use to liberals (as well as a, er, personal interest in the subject). Other than that she’s just a rubber stamp along with Sotomayor.