Why calling people asymptomatic when they are immune?

INSIDIOUS USE OF LANGUAGE.

Cassie-Fooky discusses today how the use of asymptomatic instead of immune for the vast majority of people who do not even get sick at all is meant to increase the fear among the population.
The number of so-called cases has skyrocketed, yet the number of deaths has not risen in the same proportion. How many of those deaths would have been certified by the real reason of their death if kits haad not been available now? Because if you have a few more deaths now than in Spring, how come there were so few cases reported? The explanation: most people are not “asymptomatic”. They are IMMUNE. Yes, IMMUNE people are asymptomatic, but assymptomatic people are not necessarity immune. They can eventually get sick.
Cassie-Fooky shows that there should have been a ton of people infected not getting sick, and pasing it on to other people who got infected and did not get sick.

Resources.

https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/datasets/weeklyprovisionalfiguresondeathsregisteredinenglandandwales
https://www.thelancet.com/journals/lanres/article/PIIS2213-2600(20)30527-0/fulltext