You've received the best advice, imo. I'm in the Middle East and I was in the same dilemma as you, and I was torn too. I stopped feeding them. Then I started feeding them again, I couldn't bear seeing and hearing them downstairs, hungry and cold. I took a decision: I would feed them and at the same time try to find help to TNR them. It took a few months but then I got connected to people who were wonderful, and all my strays are nowadays TNR'ed - except 2 males, which we don't want to neuter.
The Royal von Meouw Dynasty: His Royal Highness the late Prince von Meouw,
Her Royal Highness Princess Gatita von Meouw, Nikita Duchess of Meouw and
His Highness Cuchi-Cuchi, next in line for the throne of Prince von Meouw.