Equally uninformed post. Ditching homologation rules will not entice more manufacturers. It will drive them away.
We have had homologation for 40 years or more. They have homologation requirements in IRC also.
Were there a driver in IRC presently who is better than Loeb they'd already have his seat. Simple as that.
Stating the obvious, Loeb will continue to dominate until such time as somebody else catches up.
To answer the original question "can Loeb be beaten?" Of course he can.