Earlier quoted context omitted.
While lobbyists have sometimes bribed officials through gifts and perks, which is illegal, lobbying is not bribery. Say you're interesting in promoting renewable energy. You and like minded people put together resources to promote renewable energy to politicians, explaining its benefits. This activity is lobbying for renewable energy.
This breaks down when politicians get some kind of personal benefit such as campaign contributions or a consulting job. This is a conflict of interest and should exclude them from any vote about the interests of the lobbyist.
Everyone has a right in the US to petition their government but damn if that doesn’t sound like a convenient workaround