If evolution exists and humans came from the sea.why don't all sea creatures evolve and come and live with us on land ?

They might, ask again in 20 million years.

Common sense!

Evolution is about evolving to use the best place, conditions and food!

If all see life evolved to live on land then all animal life would cease to exist because they would all compete for the same food, water and resources and there would be no food source in the ocean!

Which extremist sect or cult indoctrinated you to believe that God was not clever enough to use the big bang, evolution and science as his tools?

The Pope, Catholic Church, Church of England and mainstream churches all accept the big bang and evolution!

Lord Carey the former Archbishop of Canterbury put it rather well – “Creationism is the fruit of a fundamentalist approach to scripture, ignoring scholarship and critical learning, and confusing different understandings of truth”!

Nice that Christians and atheists can agree and laugh together but sadly at God’s expense!

some did. but since it's possible for creatures to survive in the sea, current sea creatures evolved different attributes. The thing with evolution is if you can reproduce before you die your attributes (even if they are negative) tend to get passed on it's only when they are such bad traits that the creature dies before it can reproduce that the attributes are lost.

They ... did... as noted in your question previously. The evidence for this is in the fossil record and many other scientific studies that have determined the roots of many of the species that we see on the planet today. The evidence that supports and confirms evolution is no less than overwhelming in reality and is breathtaking when you honestly understand the beauty of it. Hope this helps.

If migration exists and Americans came from Europe, why don't all Europeans migrate and come and live with us in America?

Its all about the random distribution of some creatures compared to others. Some stayed in the sea, others started to move on the surface, breath air, feed their young, climb trees, hunt standing upright, type with prehensiles.

Who's to say they won't?

Both oceans and land are places life can exist, there is nothing stopping living things surviving in both environments.

Evolution is a tree with many branches, not a corridor with no doors.

THEY DID...FISH EVOLVED INTO LIZARDS...GREW LEGS...CRAWLED OUT ON TO LAND AND EVENTUALLY WE EVOLVED FROM A BRANCH OF THEM....DO SOME RESEARCH...STUPID TO COMMENT ON SOMETHING U KNOW NOTHING ABOUT.