Also avoid oranges? Economists talk of the cross elasticity of demand. If the price of wheat and rice go up, then rival substitutes also go up in price as poor consumers look for cheaper deals. This will apply to all food. In 5 years it might be difficult to raise food above the Kansas-Nebraska border.
They know what the problem is and it's not a grand solar minimum. This is being propagated by the same folks who brought us "climate change". You should know better than to trust these charlatans.