

Carefully cleaning the udder and teats, and very quickly refrigerating raw milk should significantly reduce the risks of bacterial contamination and growth. This is not done in most cases though, so raw milk usually carries a much higher risk of listeria.
Having had listeria once–contaminated green beans–I very much do not recommend it.
The totenkopf most strongly associated with white supremacists is a 3/4 view with crossed bones behind it. A skull by itself doesn’t have a ton of meaning; could just mean that the person is goth. The image used in the chart doesn’t look like the symbol most commonly used by white supremacists.
The wolfsangel symbol isn’t correct; I don’t know what that symbol is, but it’s not a wolfsangel. A wolfsangel looks like a Z with a crossbar in the middle.
That should be written as an oþala rune; the ‘þ’ isn’t a ‘d’ sound, it’s a form of the ‘th’ sound, along with ‘ð’. As with all other runes, it’s essentially just an alphabet letter. When used by white supremacists, it usually has the ends turned up, but not always.
There are other symbols that get used by white supremacists, but these are the most common.