Check Player Quantities

Unity Engine
1

Player Resources and Required Resources follow a similar pattern;

public struct RequiredResources
{
    public Resource resource;
    public int quantityRequired;
}

public class Resource : ScriptableObject
{
    [SerializeField]
    private string resourceName;
    public string GetName() { return resourceName; }

    [SerializeField]
    public Sprite icon;
    public Sprite GetIcon() { return icon; }
}

The resources available to the player are as follows;
Food, Gold, Wood, Stone

I wish to use a system like this so I can easily add more resources as needed. When a building is placed it has a list of resources required to build it, for example a house may cost;
Gold = 5
Wood = 3

With the code below this will loop through the resources and reduce the amount as required. Basically the amount the player has - the cost, then update the UI.

public void UseResources()
    {
        foreach (RequiredResources requiredResources in building.GetResources())
        {
            foreach (ResourceManager.PlayersResources resource in player.playersResources)
            {
                if (requiredResources.resource.Equals(resource.GetResourceType()))
                {
                    resource.RemoveQuantity(requiredResources.quantityRequired);
                }
            }
        }
    }

However, before running this I want to check if the player even has enough resources. When I use a similar logic to return true and false, and the player has enough wood (true) but not enough gold (false), it will remove the amount for both. I am at such a loss as to a way to do this correctly.

Please help!

2 
    public bool HasRequiredResources(RequiredResources[] requiredResources)
    {
        foreach (RequiredResources r in requiredResources) //go through all required resources
        {
            foreach (PlayersResources p in playersResources)
            {
                if (r.quantityRequired > p.GetCurrAmount())
                    Debug.Log("Has enough " + r.resource.name);
                    return false;
            }
        }
        return true; //reaching this point means that the faction has all required resources
    }

This is what I have but it always return false, where am I going wrong? I believe this is due to the foreach inside of the foreach. But how can I run the search of the second (PlayersResources) list to return the same Resource?