Terms like “the right” and “the left” can come with a lot of ambiguities but I’m willing to interpret the terms as most commonly understood.
That said, even though I’m a huge critic of the right in many many contexts, I also have to say that (based on my experience with 501c3 organizations and the peer-reviewed academic studies of them), “the right” certainly has an impressive history of charitable donations and projects which often dwarf those of people on “the left.” Indeed, lots of non-profit charities (I’m talking secular charities) tune their advertising campaigns to reflect what has long been common knowledge: zip codes associated with conservative and even right-wing voters of modest incomes tend to donate far greater percentages of their incomes to charities [I’m not talk about donations to their churches but to separate charities] than do zip codes associated with left-wing voters, even those zip codes associated with much higher incomes.
Perhaps this has changed since my retirement but I doubt it. Thus, despite my disdain for so much which has developed within “the right” in recent years, I would without hesitation answer that the right more closely reflects the generosity described in these verse.
Of course, generalizations are just that and tend to come with risks. But I would be surprised if this maxim of charitable giving has changed significantly in recent years.
What used to surprise me even more was the fact that those on the right who regularly make significant donations to charitable causes were also making very significant percentage-of-income donations to their churches. To me, this makes their overall “generosity profile” all the more impressive.
I even saw this first hand when I was a professor at an evangelical seminary back in the 1980’s when it got a special award from the local United Way campaign for highest employee participation in a payroll-deduction program. I recall that the second and third place “winners” were the employees of some major corporations whose names you would recognize which happened to have their headquarters in that same very high income suburb of a major city. (It was one of the highest household wealth and incomes zipcodes in the USA.) The average salary at our evangelical university was tiny compared to the average for that suburb. (Indeed, many of our seminary student couples worked as nannies, chauffeurs, cooks, and house parents at the mansions of the wealthy in that area.) I could tell a similar anecdote about another evangelical school and donations to the Red Cross.