Could Delta really match Asian airlines in soft product?

After a couple trips on KE and SQ, it makes me wonder if Delta could match Asian carriers in soft product, if Ed so chose.
The ground staff and cabin crew attitudes, for one.
Delta isn’t unionized here, wouldn’t they have more flexibility to employ more motivated ( read “younger” ) crews.
Properly clean cabins.
Serve food even on 2 hour flights.
Not that much $ for a “premium” airline.
I get that AMEX makes the $ but people wanting to fly Delta wouid increase credit card penetration, no?
Really this would not be a huge cost, either.
Especially instilling something like a customer service focus. It goes a long way.