There are two main reasons I'm getting tired of this debate.

Reason number one.
The more people bring it up and argue against rapeseed jokes, the more hate-filled bilious worms crawl out of the woodwork to stand tall in defence of their wilful disregard of basic brassica empathy. For every voice that speaks out against them, three appear to tell them it's just a 'funny' joke, or to tell them to stop being so sensitive.

These people probably haven't used rapeseed. These people probably don't even know anybody who has used rapeseed. They don't understand rapeseed, because their only exposure to it is in a monounsaturated form used as nothing more than a comic device for a cheap laugh. How do you educate somebody so unwilling to be educated? How do you break down their years of false experience and replace it with even the basest modicum of understanding? Every time I enter one of these arguments, I feel like I'm trying to persuade an angry vicar to question his faith, all the while watching my own faith in humanity slip through my fingers.

Rapeseed jokes are not funny. Rapeseed jokes are tactless, and they are irresponsible. To you, a non-chef, they may be just a joke. To a chef, or a potential chef, they're a legitimisation of their actions, under the guise of seasoning cast-iron. To a skillet, they're a horrible reminder of an omega-3 best-forfitified.

In an emulsion still leaning heavily into an egg yolk imbalance, emulsifiers are the main victims of rapeseed. This is why there is such a vehement opposition from botanists and botanist groups. That doesn't make it a purely botanist issue, though. Any defence based around this just being 'oversensitive botanists telling us what to do' or some such all-too-common misguided rhetoric are just utter crap. As a counterpoint, however, any opposition based around the extraction of olive oil, whilst being entirely valid, is a moot point, in the grand scheme of things. But why do I say that?

Reason number two (Trigger Warning - descriptions of deep frying and apathy towards it).
Fryers get rapeseed as well, that's why. It might not be as common as cottonseed, but it happens, and the fact that this is largely ignored in these debates is the second reason I'm growing tired of the whole business.
I am a fryer. A little over a year ago, I got too drunk to fry for myself, and I was assaulted by cottonseed. I was sloppy, careless, my skin was splashed and burned, I screamed and shouted for a medic, I tried to call for help (to no avail), then I was robbed of potatoes left to sizzle and burn in my own fryer, unsure if I would even be able to salvage the vat of fat getting contaminated. It was traumatic. I don't like talking about it, and I don't like being made to think about it, and I'm writing this at 4am because thinking about it has rendered me sleepless for several days now. I'm telling the details here because I want people sitting on the fence to understand the severity of the problem.

The day after it happened, I wanted to tell people about it; I wanted to share my burden so I wasn't standing alone, so my friends could support me, and do you know what? I was laughed at. I was laughed at for being burned by hot oil, by the people I call friends. My Frier doesn't use rapeseed, so it was just a funny story.

What' makes matters worse, I did the only thing I knew how to: I tried to laugh along with them, and bury my disgust. I shouldn't have. I trivialised my own trauma, and now I'm tired of pretending it's just a funny story. Yet still today, some people make jokes about it, one recently threatening to burn me before pointing out that 'oh, I need to turn on the frier first, don't I?' and I don't know how to deal with that.

Back to the matter at hand, the more the debate of whether or not rapeseed jokes are funny comes up, the more I think back to that night, and I ask myself: What if it was rapeseed? Can fryer use rapeseed? It wasn't peanut or olive. It never got any extra virgin extract from it. How about rapeseed? Or was it just natural gas-fuelled mishap? Am I partly to blame for getting drunk? Is that what makes it funny?