While the Congress has taken a step forward in recognizing that same-sex partnerships deserve the same employer-provided healthcare benefits as married ones, the endorsement does not advocate for "all patients" as claimed in the statement. Until unmarried people have the same access to healthcare, at the same rates, as couples, there is no equal healthcare coverage. And the Congress takes this one step further by supporting marital status discrimination in the form of the benefits of Social Security and rights to shared property enjoyed by the legally married.
Shame on your for making a general statement about the health benefits of marriage without citing a definitive study on the subject. You can't do that, because such a study does not exist. Multiple studies have shown that unmarried people are just as healthy as married, and that marriage in fact introduces unique stressors not found in unmarried lives.
Yes, anyone who wants to get married should be able to do so. But marriage is not the only legitimate outcome for committed relationships and it certainly should not provide benefits not available to 112 million unmarried people in the U.S. The next time you tackle the issue of healthcare equality, please do consider ALL of your patients.