Of course you own the domain and you can use it.
If the company can get the domain as the reason of trademark , I will establish many new companies called " Toys Ltd. " " Car Ltd." to get the toys.com , car.com for free :P
You misunderstand (though pretty much all of us do once in a while).
Having a trademark doesn't mean its owner can get the domain namesake just like that. Search for Leo Stoller, who tried and failed miserably.
A concern here is the scenario wherein one gets a domain name that was registered
before its trademark namesake existed. As some administrative cases (e.g. UDRP) have shown, you still can't use that domain name to take advantage of that trademark especially if you just became aware of it.
Let's say you registered abcxyzDOTcom in 1997 and then someone used abcxyz as a trademark for something in 2006. If you parked the domain name since 1997 or so, then you can't change its ads to show competing products/services of the mark because that (at least) gives the impression of trying to exploit the latter.
Where things (tend to) get confusing or complicated is trying to sell that domain name to a trademark holder. Ideally, you "should" be safe if you do it. As some cases indicated, however, that situation isn't necessarily clear.
Is this sucky or worrisome? Maybe.
Is this avoidable? Yes, for the most part.
