Should Muslims ume the fact that their Issa have no relevance to the Jewdeo-christian's Jesus ...?

They come 600 years later and tell people the christian corrupt the Bible. How come the Jews never say the Christian corrupted the OT? Yet in Islam Ismael is supposed to be the one sacrificed instead of Isaac, Jesus' mother, Myriam, is Aaron's sister and so on.....these facts are false and yet the Moslem insist their version is right.