These are useless, can be opened with a strong screwdriver or as what happened to one of my customers, cut the steering wheel!!
If you want a decent steering lock, use disklok.
As for the keyless entry, an aftermarket alarm/immobiliser or the ghost system would be best option.
Also blocking you drive way would slow them down too.
But if someone wants it so bad, they will find a way to take it.
Well, at minimum it is better than nothing. It is better to have something, even if it is unless, than nothing at all.
Of course, thieves will find a way if they really want the car. But I saw on BBC News (or
The One Show) in which they mention that most thieves prefer to try to use technology to take the keyless car as quietly as possible. If they find at minimum a
Stoplock bar across the steering wheel, and that if you are lucky enough, the thief is more experienced or smart, there may be a chance the thief skips that car and find another keyless car somewhere else.
If the thief is either a first timer or a stupid one, they may try to use the technology to get into a keyless car, then break open the
Stoplock bar or cut the steering wheel, but made too much noise doing so. Plus there is the risk of accidently cutting his hand, and leave some drops of blood, or the risk of steal the car, take to a hideaway, open the kit bag, and mutter "Blast! I dropped the hacksaw at that house!"
I would agree with you that maybe those
Stoplock bars are unless, but as you pointed out, if thieves want it so bad, they will find a way. Even if you use something like
Disklok, and one of those arm locks that lock the gear stick to the handbrake, surely some thieves would be still willing to have a go anyway.
Better something than nothing even if it is unless. It won't stop the thieves but you could hope to cut down the chances.