I mean... there's a substantial difference between agreeing with a lifestyle, and persecuting that lifestyle. I assume you aren't currently picketing churches and harassing religious people, for example. The Bible is clear that an abundance of things are sinful, but Jesus consistently sets an example of loving prostitutes and tax collectors and Roman soldiers and everyone else Jews of that day hated.

So what this tweet is claiming is absolutely valid, the New Testament is immensely clear you should love everyone, and you shouldn't give "fundamentalists" a biblical pass for ignoring one of the most fundamental points the Bible makes, in hopes that they'll be willing to completely discard religion. They should be educated on their own damn book, and it's perfectly reasonable to call them on that.