1) "There is only one G-d". Correct. That's why Jesus isn't divine. To say otherwise is to deny "HaShem Elokeynu, HaShem ekhad", which means "The Lord our G-d, the Lord is One".
2) Christians like you say "Jesus was king of the Jews". No-one else does, not the Jews, not contemporary records, no-one. Jews didn't have a king at that time other than HaKadosh barukh Hu, the Holy One, blessed be He, and hadn't done for many hundreds of years. Jesus was just one of the itinerant teachers with radical ideas who were running around Eretz Yisrael at the time.
3) "[Y]ou can follow man's law but in the end you will answer to God". Jews are bound to keep both sets of laws; we have a complex set of responsa to help us understand what to do where there are conflicts between the two. But we know what the law of G-d is: it is Torah min HaShamayim and Torah sheh'b'al'peh, which we have learnt and studied carefully for thousands of years. If you think we're going to rip it up and start eating pork because you say that Jesus says it's alright now, you've got another think coming. By the way, conflicts frequently arise when some murderous persecuting little sh*ts come along and try to prevent us being true to our faith. Astonishingly enough, the people that have done that the most in the last couple of thousand years have been ... Christians (at least in name). You know, Torquemada, York, etc etc. Where, while your co-religionists burnt us at the stake for refusing to convert and for "killing Jesus", they told us we were going to Hell. So if you can rein in your murderous instincts for just a little while, we can get on with both worshipping G-d as we are supposed to, and (mostly) living useful, productive and law-abiding lives in the countries in which we reside.
I want to make something clear: you are perfectly entitled to believe that you are right and I am wrong and that People Like You are saved while People Like Me will Burn In Hell for rejecting Jesus. But if you tell me any of that in public, I will publicly respond by telling you my beliefs. And you won't like them.
Let's finish with a question: why do you think the US government should be enforcing the laws of your religion? The name for a government that does this is "theocracy". It is not "free republic".
That's sort of the stumbling block isn't it? Jesus claimed to be God -- not a prophet -- so he's either telling the truth or a fraud.
If he's not God, how did he rise from the dead? Or command the wind and the waves? You will answer those are fictional accounts. I could ask so where is his body? You will say it was stolen by his disciples -- a statement of faith on your part.
There are tens of millions of people today -- including me -- who can testify to a personal, real experience with Jesus. You can say we are delusional. Or you can say maybe he is divine.
If you believe in an omnipotent God, there is nothing to keep you from believing He was incapable of taking human form out of His love for us to save us from the path to destruction upon which we willfully embarked.