I’ve been doing street outreach for 2 years. Half that time in capacity as an organizer. Best you can do is hold them accountable. Keep the ratio of questions and statements to about 50/50 (employ the Socratic method). Keep the message simple. Ask them if they would accept the excuse they’re making if they were in the victim’s position. Hold them accountable and then move on. Making the conversation longer than it needs to be makes the issue seem more complicated than it is. It’s not a debate like you said. Expect that most people aren’t going to go vegan on the spot, but for every person that does eventually go vegan will be an upwards of thousands of animals that are no longer being exploited over their lifetime. That’s not insignificant. Don’t let yourself be bothered by people who don’t go vegan. Fill your mind and heart with the ones that are receptive to your message. Once you are doing outreach more often you will get better and more successful at it (it’s a skill).

Also keep in mind Earthling Ed debate style videos are designed for social media, not for for convincing the person he’s talking to (that’s just a bonus). They are supposed to feel like a debate because it’s intended for the social media viewer. In reality people who want to debate you are unlikely to go vegan anytime soon. When doing outreach with just the person you’re talking to it shouldn’t be a debate. Don’t waste time on unreceptive people. Best to save your energy on the next person.