Brailsford also masterminded the British team's domination of cycling at the last two Olympic Games and he admitted he was ready for confrontation before Sunday's crucial climb up the Aple d'Huez, before the race's conclusion on the Champs Elysees.
He told media: "What we went through last year was pretty shocking, and we thought it was going to be even worse this year.
"So we decided, 'right, we are going to have to defend ourselves here.' We thought maybe our windscreen might get smashed - we were half-expecting that - and if that happened, we were ready.
"I must admit that, on the approach, I was thinking, 'Here we go.' But in actual fact it was timid.
"What you see at big derby games in football is much worse - it's nowhere near as tribal in cycling - but there are a few idiots out there with the urine, spitting and so on.
"Several times, driving up the Alpe d'Huez, I had my watch off and I was getting ready to rumble. There comes a point, when you get that abuse, where you have to be ready to do something about it.
"Chris (Froome) rode on when someone threw urine over him. If someone did that to me, I would stop and have it out with them."
Froome is the first British rider to win the tour twice and Brailsford believes the personal attacks on him are based on the French's desire to see a home-grown champion for the first time since 1985, when Bernard Hinault won the tour.
"Will it take 10 years or more to live down cycling's doping era?" said Brailsford.
"It depends where the rider is from: if there was a French champion, I'm not sure the French would be so concerned with digging into their data files."
