Force/thrust/ram something down somebody’s throat
Definition 1 of 1
Pro Tip 1/3Aggressive Connotation
Using this phrase implies confrontational behaviour or strong imposition, suggesting a lack of consent or willingness. 
The salesperson tried to ram that insurance package down my throat even after I said no.
Pro Tip 2/3Informal Context
The phrase is casual and may be inappropriate in formal situations, such as academic discussions or official meetings. 
I wish our manager would stop thrusting her ideas down our throats during staff meetings.
Pro Tip 3/3Metaphorical Imagery
Imagine the discomfort when something is physically forced into your mouth; the phrase conveys a similar emotional discomfort. 
I couldn't enjoy the dinner because my uncle kept forcing his conspiracy theories down my throat.