1. I assume you mean besides biblical evidence (Genesis 18:16-19:29). Here's an article on archaeological evidence:
The Discovery of the Sin Cities of Sodom and Gomorrah
2. And an article on Obama's comments after the Supreme Court decision::
Obama: Americans need to shift religious views to accept gay marriage - Spokane Conservative | Examiner.com
1. I read the article, which, I must say, was very interesting. But, when it comes to identifying the cities as the ones mentioned in the Bible, even the archaeologists themselves aren't 100% confident. They made an inference that, if the cities ever did exist, they were most likely the ones that they found. That being said, I never disagreed that the cities were found, I merely pointed out that there is absolutely no evidence that God destroyed them, apart from a claim made through a story in a book written thousands of years ago at a time when myth was HUGE. You are using your confirmation bias, that the Bible is accurate and can be used as historical evidence for certain events, in conjunction with these archaeological finds to assume that God destroyed these cities. I do not think that is a reasonable "jump" in logic.
2. Also, I read the actual transcript from the Obama interview, and he never asked that people change their views on their own. He said that it was the responsibility of the LGBT community to help change peoples minds/beliefs on the issue. I don't see anything wrong with that, and I wholeheartedly agree that people should attempt to open their minds on this issue, from both sides. Don't believe everything you hear about Obama, as the conservatives often put words in his mouth, assume that they know what is going on inside his head, and say things that just are flat out lies. Remember when Trump made the "birther" argument? Or when people actually believed that Obama was not Christian, but, instead, Muslim, and was lying to everyone about it? Now, I am not the biggest Obama fan in the world, but I have seen a lot of people become dishonest when it comes to discussing his views.
Here is an excerpt that should put your mind at least a bit more at rest (
Obama Transcript: Statement on Same-Sex Marriage Supreme Court Ruling - POTUS Operandi
"I know that Americans of good will continue to hold a wide range of views on this issue. Opposition, in some cases, has been based on sincere and deeply held beliefs. All of us who welcome today’s news should be mindful of that fact and recognize different viewpoints, revere our deep commitment to religious freedom.
But today should also give us hope that on the many issues with which we grapple, often painfully, real change is possible. Shift in hearts and minds is possible. And those who have come so far on their journey to equality have a responsibility to reach back and help others join them, because for all of our differences, we are one people, stronger together than we could ever be alone. That’s always been our story."