This has been discussed thousands of times online so I don’t feel the need to type out a very long answer.
The pure existence of modern day chickens is animal abuse. The closest known relative to the modern day chicken lays about 10-15 or so eggs a year. Modern day chickens lay eggs daily. It is extremely hard on their body, they have been selectively bred to provide output with no care for their wellbeing.
That being said, if a vegan were to rescue a chicken or something, and it produces eggs, the best you can do is usually feed them back to it. I know that sounds weird but if you feed the chicken back its own eggs, it helps recuperate lost nutrients, and they love it.
I feel like you can easily find counterexamples that aren’t ironic, so this argument doesn’t make sense.
“It’s like rain on your wedding day” - This is not irony. Weddings are planned months, sometimes years in advance. There wouldn’t be an expectation that it couldn’t rain on your wedding day, that’s an understood possibility.
Because it’s an understood possibility that it can rain on your wedding day, it’s not ironic if it does happen, it’s just unfortunate.
An example that would be ironic, is if you are planning a hiking trip and you specifically go on Saturday because the weather forecasted it to be sunny, but it ended up raining anyway. That’s ironic because expectation does not meet reality.