Welcome to the forum and so sorry to hear about your situation

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Anybody else been through this ordeal? What are our options? It took us two years of hard work to get to the point where we could get approved for a visa under the old law, and now we're subjected to this. FOUR YEARS OF MARRIAGE, and I can't be with my husband, because of his wages? Doesn't this violate human rights?!
Your options are either:
a) Wait until you meet the visa requirements
b) See if you can qualify for a Tier 2 sponsored work visa or a Tier 4 student visa to move here, then when you are in the UK and earning money, you can combine your income to meet the requirements (your income can count if you are already living in the UK with permission to work).
b) He moves back to the US to be with you
c) You both move to another country to live together there.
Unfortunately, this does not violate human rights because human rights would only come into play if there was no legal way for you to be together in any other country than the UK. They will argue that you have 4 possible options available to you, and only one of those involves you having to get a spousal visa for the UK. Plus, the fact that he has already lived with you for 2 years in the US will only suggest that it is not vital that you move to the UK to be with him and that if you want to be together, he can always go back to the US instead.
Who can I write in the UK about this? I'm fully prepared to make noise and lots of it.
You can make all the noise you want, but it won't make a difference. If you don't meet the visa requirements, you cannot qualify for the spousal visa to move to the UK. End of story.
The new laws have been put in place specifically for the purpose of limiting the number of people who can qualify for the spousal visa - so as horrible as the situation is for you, it's actually the whole point of the new rules.
I think this is ridiculous! The visa rules don't account for cheaper cost-of-living areas that don't pay as high of a wage (it's not needed). My husband works 11 hours a day, and more overtime on the weekends. He's busted his butt to get us to this point, and still doesn't earn a wage near what's mandated by these laws.
While it is cheaper to live in other areas of the country, £18,600 is the figure the government have decided on, and that's that (it's better than it could have been - they were originally talking about making it £25,700). It's not going to change any time soon, and there are no exceptions allowed, so unfortunately it's something that you're going to have to accept

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I think, if anything, this is discriminatory. It's as if only the wealthy are allowed to fall in love and be married.
Maybe so, but the government have had to restrict immigration to the UK - they have already tightened the rules for work visas and for student visas, and now they've moved on to spousal visas.
They cannot do anything about EEA/EU immigrants in the UK because they are legally allowed to move here if they want, so their only other option was to reduce the number of spouses and partners who could move here.
My husband called the immigrations office, and asked if it was against human rights...their first question was to ask if I was already there? He said, "No." They responded that it wasn't against human rights, then.
Would it be considered a human rights violation, if I were already there?
No, because there are 26 other EU countries that you could legally live together in and you could in theory move back to the US together (or immigrate to another non-EU country altogether). Or alternatively, you could see if you can qualify for a UK visa in your own right (work/student visa).
Human rights would only really come into play if you were in a refugee or asylum seeker situation and it was too dangerous for you to return to your home country (i.e. you feared for your life and there was a real possibility of you being shot or killed upon arrival), and the UK was literally the only country in the world that you could possibly live in together.