Show all items in a list after applying Page Level filter

i don't understand your question.

in what context are you displaying 'a list'?  a table card?  a filter card?

do you want your list to include all data with or without respect to the page filters?

no not at the moment.

Initially, filter cards were designed as a 'one or the other' regarding page filters.  either use a page filter. Or use filter cards, but things get weird when you use both.

the problem is, expectation.  when you use filter cards, you intuitively know to uncheck the box that's filtering your other filter cards.  people don't necessarily think to uncheck the page filters that's filtering the filter cards.  

that said.  one of the things you can do, is alter your filter cards "Interaction Settings" so that they do or don't impact other filter cards.

But have a thought about User Experience.  If I apply a filter to 2019, would I want to see customers from the dawn of time who haven't had interactiosn with my company since 2009.  It would get obnoxious to keep guessing combinations of filter values that were not applicable to my dataset.