Alas, that is not the case.
I dont belive racism covers "hate because", its Discrimination/predicuce on the basis of race, unless you do either of those on the basis of race, its not racism and you arent a racist. But you can discriminate on muiltiple factors. (and also hate somone just because of their race or those other factors)
If they all happen to be asian, doesnt make it racist, maybe its a only asian gang that goes around victimising people? So people would be weary of asians on that criteria? Its a perfectly natural and sound reaction to being victimised, it might not be the best, but it can happen and is more likely to happen and be a reasonable reaction if Asians are a minority in your area. It probbly wont happen if asians are split 50/50 with what ever the other race is, but that might manifest into a generic mistrust of people because they are all around you.
Like, i dont think white people in white dominated areas become distrustful of white people if they are victimised by one, it manifests in the mesure of generic distrust. But if say asians are a minority and you are, it might manifest for them down to them being a foreign entity.
For the second point, no it isnt and you cant really make people not discriminate. And to be fair, you have to be stupid to put down a protected chracteristic as why you didnt hire somone, you dont have to give a reason. Just give a non asian the job is you are racist towards asians, or a male/female if you dislike either or. Innocent until proven guilty and the police force has to find a reason for it, you cant just call racism or sexism etc because you arent hired, or by happen stance only one race/sex is employed. *
Plus for the law where i am at, you can (within reason) not hire somone based on "protected chraracteristics". there is actually a protection, and thats largly down to it being inappriate to have them there. eg non catholics at a catholic school, males at a all female school, females at a all male school so fourth.
Agree with it or not, thats what i make of my readings of the explinations of the laws for where i live, i only included that for a intrest factor.
Addendum: This has accidentally been made semi more political than i intented. and its sort of rambely.
* for some reason re reading that i got reminded of a "thats so raven" episode where that was the topic, unless somone is stupid enough to say in explicty black and white "x didnt get the job because they are [insert protected characterstic]" and it be recorded, nothing is going to come of it more than likely.