I therefore have no further desire to converse with anyone here. 
Oh, darn. I mean, your time here was so productive, after all.
I don't know why, but in case you are reading this, I am going to attempt to answer your question clearly and concisely.
Do Catholics believe that Mary was born sinless? If so, then since God is the only one who is sinless, then the Catholics must think that Mary is God. If so, then since Mary isn't included in the trinity, then the Catholics worship 2 Gods which breaks the first two commandments. Otherwise, how do you explain your claims?
Emphasis mine
There are two issues at hand here.
1. Who
we here on orthodoxchristianity.net are (an issue based on the words "you" and "your" in the OP-- emphasis added for the purpose of pointing this out)
and
2. What Catholics believe about Mary's sinlessness.
The answer to question 1.
We (the majority of us, that is) are ORTHODOX CHRISTIANS. You seem to be unaware that the Orthodox Church is a Christian Church SEPARATE from the Roman Catholic Church. We are NOT members of the Roman Catholic Church. We are an entirely separate church altogether with entirely different beliefs from the Roman Catholic Church. We do not attend Catholic Churches, we do not follow the Pope of Rome. Saying that we are Catholic is like my saying that YOU are Catholic. It is simply not true.
Here are a couple websites that will educate you in the faith of the Orthodox, should you be interested in learning more.
www.goarch.orgwww.oca.orgwww.antiochian.orgThere are many others, but these would be a good start. Feel free to look at all the threads on this forum, as well. You will be able to learn much about what we believe by reading those.
As to question 2.
What Catholics believe about Mary was more than adequately stated already in this thread. If you are interested in what the Orthodox Church believes about Mary, I know some people have already given concise explanations, but since those don't seem to be satisfactory to you, just search on this forum and you will find many threads dedicated to the subject. There will be plenty of source material within those threads for you to read, as well.
Now, should you decide to re-join us on the forum, I have a question for YOU to consider. Why are you here? Because you want to learn, or because you want to judge? The answer seems obvious to those of us reading your posts. Maybe it's not so obvious to you. You might want to consider it. There are wonderful people on OC.net who love to talk to people who want to learn from us, and to people from we can learn. But those who come here wanting to judge us usually find that their time here is not as fruitful and people are not as friendly. Which are you?
In Christ,
Presbytera Mari