False Christs

Jesus predicted many will come saying that He has returned.

(Mat 24:4-5) And Jesus answered and said to them: "Take heed that no one deceives you. {5} "For many will come in My name, saying, 'I am the Christ,' and will deceive many.

(Mat 24:11) "Then many false prophets will rise up and deceive many.

(Mat 24:24) "For false christs and false prophets will rise and show great signs and wonders to deceive, if possible, even the elect.

(2 Pet 2:1) But there were also false prophets among the people, even as there will be false teachers among you, who will secretly bring in destructive heresies, even denying the Lord who bought them, and bring on themselves swift destruction.

Why aren't people claiming to be Buddha or Mohammed?