No, that's not true. I won't accuse you of lying, because you may not have spent much time in this thread, but you are discounting the painstaking research that people like BatScot put into plausible forms of fabric protection, and all of the time many of us spent arguing their case. You are also ignoring the fact that much of the argument was about the colour of the batsuit. For the obtuse posters who refused to countenance the plausibility of light fabric "armour", the rubber/plated armour they insisted upon had to be black. Many of us in favour of a fabric costume did argue that its protective function should complement Batman's stealthiness and agility as a final rather than a primary defence against gunfire, but I recall only one poster who preferred no protection at all.
It's remarkable how quickly all of the losing arguments in this matter have apparently been forgotten, given how tenaciously and pugnaciously they were pressed for many years.