Sechel, you should read the next few words of the shu”a and rema…
One should only work a little bit to have what to eat:
ויעשה מלאכה כל יום כדי חייו אם אין לו מה יאכל
And not taking tzedaka? That’s only for a healthy person who is (stress) able to work… But a person who can’t do both, says rabbeinu yonah and rabbeinu yerucham, he may take tzedaka to learn according to all opinions, even the rambam!
The rema continues:
ויש אומרים דאפילו בבריא מותר (בית יוסף בשם תשובת רשב”ץ) ולכן נהגו בכל מקומות ישראל שהרב של עיר יש לו הכנסה וספוק מאנשי העיר כדי שלא יצטרך לעסוק במלאכה
And some hold that even a healthy person can do so… Quoting none other than the beis yosef!
And want to know what the rema paskens like? Read above – that is the minhag in all places of yisroel!!
I guess MO wants to take itself out of the category of “all places of yisroel” and dig up old shitos that are not followed in halacha.