I know that everyone is aware that Ivermectin was created to treat parasitic infections in humans and that it's been safely used- by humans, prescribed by doctors- billions of times. It's been prescribed by doctors- here in the USA to treat many kinds of parasitic infections in people such as scabies, and that it's routinely used in other countries to reduce or eliminate the severity of COVID in humans.
The differences between the pill form prescribed by doctors for human use and the stuff available at your local farm and ranch outfitter are 1) the manufacturing process for animal Ivermectin is less stringent, and 2) dosing isn't as precise for the animal Ivermectin.
When you live in a state, county or city that has so politicized treating Covid with human Ivermectin that a doctor could lose his license for prescribing it, or if you have a health network that has forbidden using Ivermectin for Covid, people will take a chance with the next best thing. It might be apple flavored horse dewormer: active ingredient being 1.8% Ivermectin. If that's what someone is willing to resort to because their access to a globally common medication that's been proven to reduce Covid symptoms, why should anyone else get their knickers in a twist?
The vaccine has proven to be a failure when it comes to preventing both contracting and transmitting of the virus; it appears that its best effect is reducing the severity of a covid infection. The list of side effects is long and, with no long-term studies of the side effects available, many people are far more comfortable with the well-documented side effects of Ivermectin.
Ivermectin has been used by billions of people in India, Africa, South America and other countries to combat myriad diseases and infections for decades. The miniscule number of people who have had negative effects from the drug are far outweighed by the positive cures it's provided. It's safe and effective, to borrow a tagline. And, unlike the vaccines, Ivermectin has decades of documentation behind it.