The Quran Tells Us to Ignore It

S 2:62 Those who have believed and those who were Jewish and the Nasara and the Sabians--those who have believed in Allah and the last day and have done a righteous deed, theirs is their wage with their lord and there is no fear upon them nor do they grieve.

No need to become a Muslim.

S 5:47 And let the People of the Injil judge by what Allah has sent down therein. And those who have not judged by what Allah has sent down then those are the fasiqun.

Apparently not considered abrogated.

S 5:68 Say: People of the Book, you are on nothing until you establish the Torah and the Injil and what has been sent down to you from your lord. And increases many of them, what has been sent down to you from your lord, in tyranny and kufr. So do not grieve over the kafirun people.

Apparently not considered abrogated.

Now if you uphold the Torah and the Gospels, you have to reject the Quran and Islam. Some might conceivably claim that "and what has been sent down to you from your lord" means the Quran, but the Quran isn't mentioned and it says "to YOU"; but where does it say that the Quran was 'sent down' to Christians and Jews? And should we conclude that the Torah and Injil were NOT 'sent down' from Allah? And the Quran would increase them in tyranny and kufr but they are to 'establish' it?

S 5:69 Those who have believed and those who were Jewish and the Sabians and the Nasara, he who has believed in Allah and the last day and has done a righteous deed, there is no fear upon them and they do not grieve.

Again, no need to become a Muslim. And it is apparently not considered abrogated. And there's a grammatical error in the verse. The Qur'an: Grammatical Errors

Whereas S 2:62 is said to have been abrogated, S 5:69 appears not to be (!)

List of Abrogations in the Qur'an - WikiIslam