The only choice available?  Look, Trump has a majority of his party controlling both houses of Congress and so why is he unable or unwilling to push the leadership to bring forward a legislative remedy??  The same goes for his health care agenda, if that's what you can call it. 
Bottom line is Trump has demonstrated time and again he is incapable of the 'art of the deal' he is frequently so proud to boast of. Cancelling this program without any remedy by dumping it into the laps of a dysfunctional Congress that has no direction from this president isn't going to resolve this issue or any other for that matter. 
This is a key reason why this presidency will go down as the utter failure it is because Trump is all talk and no action when it comes to just about anything he pontificates about and that his defenders seem unwilling to face this is a testament to their belief its all about the optics versus the substance of which the man has none.