The "Muslim Ban" wasn't a ban on specific nations that were problematic for vetting documents for immigration purposes. The initial list had seven nations that just happened to all be Muslim Majority nations, though there have been nations that have been added which are not (North Korea being on the list) and the initial placements on the list were determined by a similar list with the previous administration. Having actually read the initial EO at the time, and following up with a search for specific key words, there is no use of the words "Muslim", "Islam", or "Arab" or any forms where the phrase forms a root. It was temporarily held from going into force by the 9th circuit court based on the establishment clause, but was overturned by the Supreme Court and was later amended to remove the language.
Your example second attempt does not read like an EO and DACA is the policy of what to do with illegal immigrants who came to the U.S. while children with their parents and may not have the language skills to function in their culture or society if returned to their de jure nation of citizenship. Most people affected by DACA are in their 20-30s today. DACA itself is neutral with respect to a recipient's nationality (in theory, a Norwegian who meets the criteria can be a recipient, though this may not actually have occured at any point in the program's existence). DACA is also an executive order from the previous administration. EO's are not laws, but rather the president's instructions for enforcement of laws, and while they do have force after one President hands off power to a new president, the new president is certainly within his right to decide to run things differently.
Republican strategy with respect to DACA is more nuanced than you may understand and most of the party (Trump included) are fine with the program, but not the implimentation by an Executive Order (a similar order protecting the parents of DACA recipients was struck down by the Supreme Court on challenge and DACA was likely headed for the same fate had the announcement of it's repeal by the current administration not been made. The charge was that it was not a valid EO as it created an existing program that is not supported by legislation and funding mandates by congress). Legally it has been dead in congress for some time, as Republicans want to use the bill as a bargining chip for concessions for stricter boarder security. This may to some be morally dubious, but "people who love laws and sausage should not see how they are made" is in full effect. It does seem that Trump is perfectly willing to have a law replace DACA in favor of boarder security concessions, and at times I've heard Republican talking heads criticize him for statements which they felt were favorable to unconditional DACA by legislation.