Edit: grammar
Not having sex with them is fine whether you know it or not. Sex is always a risk.
> What this legislation seeks to do is to remove criminal liability for someone who knowingly transmit HIV without telling their partner.
You should read the article before arguing about it. Here is the first sentence:
> "The Illinois Senate on Tuesday passed a bill that would repeal a law that left HIV-positive people open to felony charges for failing to disclose their health status to partners before unprotected sex."
Note that the law criminalizes failing to disclose HIV status, not "transmitting HIV" (which is highly unlikely even for unprotected anal sex, and essentially impossible if using a condom).
> If you have HIV and you don’t tell your partner, how are they able to make the decision not to have sex with you?
The same way people decide whether to have sex with any stranger. There are three options:
A) Take the risk. You are fully informed of the risks of having sex with strangers. It is your choice. It's not like the HIV+ person is making a decision for you.
B) Use a condom.
C) Choose not to have sex with someone until you're confident that they have no sexually-transmissible infections.
The government shouldn't force people to disclose extremely sensitive medical information in any situation.