NO, Yes Baptism is a great show of faith to others, but it is not necessary to get to heaven. The repentive thief beside Jesus on the cross was not baptized. Jesus told him, "today you will be with Me in paradise". How can you argue with that? Was Jesus lying? Did He say, If somehow you can get off this cross and go get baptized, then you can be with Me in paradise? I just don't see were there is anything to argue here
Anyways, Keep seeking truth.
I have been baptized. BTW..