Hi tar,
If you mean it's impossible to trade from U.S. $1,000 to U.S. $1,000,000 without having a losing trade (as per the thread title), then I'd agree with you. Theoretically it's possible, but it's highly improbable. However, having a string of winning trades that allows one to run up an account tenfold or, even, one hundredfold or more is entirely possible. I've done it for fun on demo accounts quite a few times and, of course, it's what makes a mockery of sites like myfxbook where it goes on all the time. One just rides the loss until it comes back to BE or returns a profit. 99 times out of 100 (not literally - just making a point) it works. The one time it doesn't of course (and there usually is only one), it results in an account blow up. The trader who manages to resolve that little conundrum has it made. To the best of my knowledge, many have tried; no one is yet to succeed.
I know you know all of this stuff, I'm really only posting this for the benefit of any subscribers to the thread who don't - and may be being taken in by the OP's antics.
Tim.