I'm proud to be a vegan. I consider it to be an achievement. there is nothing wrong with the people who find it hard.
No, there's nothing wrong with people who find it hard...but it isn't because veganism is fundamentally difficult - it's not. Being vegan is easy. Transitioning can be difficult, social and family pressure can exacerbate that, health and digestive issues can definitely complicate things. You've been particularly helpful on this forum helping people try to resolve those issues. And as you like to point out, to be vegan you merely have to abstain from animal products as much as is possible and practicable, which will vary by person. Anyone who can't meet that standard is still welcome IMO to advocate for animal rights and/or plant based eating, but they're more appropriately referred to as flexitarians or reducitarians. There should be no "vegan-ish" - either you're doing the best you can to avoid animal products, or you're not. And that distinction is important.