Dumb argument.
First, you cannot say for a FACT that that is true, unless you have a time machine and could go back and eliminate the Beatles and record the effects. Second of all, Chuck Berry, Buddy Holly, Elvis, Bob Dylan, etc would still exist and would still influence people. Among them the Stones, Who, Zeppelin, Sabbath, Clapton, etc.
The Beatles wrote a few good tunes and were obviously highly influential but to label them the end-all-be-all of rock music is to understate the influence of a lot of their forerunners, contemporaries, and followers.