Why is it that there will never be an Obamacare replacement if Republicans repeal it without first creating it's replacement?

It's because Democrats will know Republicans aren't serious about EVER replacing it and will take it personally.

So, they will be HAPPY to let the New Republican party just fall on it's face and die a terrible death as thousands die without their insurance.

So, the ONLY way we are going to have anything like Obamacare then called Trumpcare is for a replacement to be drawn up BEFORE they repeal Obamacare.

Otherwise, Democrats will be overjoyed to watch the New Republicans squirm and die from their own stupidity to do such a crazy thing and won't help them ever again regarding healthcare because they will know they are just so partisan that they cannot be taken seriously as regular patriotic Americans.

IF Obamacare is just repealed without a replacement just expect another 40 or 50 years to pass before there is a replacement. Unfortunately, it's just human nature because of the pressures of office.

Teddy Kennedy worked from the 1960s to get something like Obamacare in place along with many others. But, he died before it went into law. But, Obama made the point that he was carrying on in Teddy's memory in enacting Obamacare.